Liquid crystal display

Abstract

A liquid crystal display (LCD) includes a thin film transistor positioned on a lower substrate; a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other; an insulation layer positioned on the plurality of color filters; a light-blocking layer positioned on the insulation layer; a transparent layer positioned on the light-blocking layer and having a convex shape; an upper substrate facing the lower substrate; and a liquid crystal layer interposed between the lower substrate and the upper substrate, wherein the light-blocking layer includes an organic black pigment, and the transparent layer having the convex shape has a different shape from the light-blocking layer.

What is claimed is: 
     
       1. A liquid crystal display (LCD) comprising:
 a thin film transistor positioned on a lower substrate; 
 a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other; 
 an insulation layer positioned on the plurality of color filters; 
 a light-blocking layer positioned on the insulation layer; 
 a transparent layer positioned on the light-blocking layer and having a convex shape; 
 an upper substrate facing the lower substrate; and 
 a liquid crystal layer interposed between the lower substrate and the upper substrate, wherein the light-blocking layer includes an organic black pigment, 
 the transparent layer having the convex shape has a different shape from the light blocking layer and covers a whole or a part of a front surface of the light-blocking layer, wherein when the transparent layer covers a whole front surface of the light-blocking layer, the transparent layer has a different cross-sectional shape from the light blocking layer, and 
 the light-blocking layer and transparent layer are manufactured by: 
 coating a light-blocking layer composition and drying the same, 
 coating a transparent layer composition comprising a binder resin, a reactive unsaturated compound, a photopolymerization initiator, a black pigment and a solvent on the dried light blocking layer composition and drying the same, and 
 simultaneously exposing and developing the dried light-blocking layer composition and transparent layer composition. 
 
     
     
       2. The liquid crystal display of  claim 1 , wherein the organic black pigment comprises a compound represented by the following Chemical Formula 1: 
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formula 1, 
         R 11  to R 20  are the same or different and are each independently hydrogen or substituted or unsubstituted C1 to C10 alkyl. 
       
     
     
       3. The liquid crystal display of  claim 1 , wherein the transparent layer comprises a main transparent layer and an auxiliary transparent layer. 
     
     
       4. The liquid crystal display of  claim 3 , wherein the main transparent layer has a thicker thickness than that of the auxiliary transparent layer. 
     
     
       5. The liquid crystal display of  claim 3 , wherein the main transparent layer supports the gap between the upper substrate and the lower substrate. 
     
     
       6. The liquid crystal display of  claim 1 , further comprising a pixel electrode between the insulation layer and the light-blocking layer. 
     
     
       7. The liquid crystal display of  claim 1 , further comprising a common electrode interposed between the upper substrate and the liquid crystal layer. 
     
     
       8. The liquid crystal display of  claim 1 , further comprising a common electrode directly on the lower substrate. 
     
     
       9. The liquid crystal display of  claim 1 , wherein the light-blocking layer has a larger optical density than that of the transparent layer by about 1.0 or greater. 
     
     
       10. The liquid crystal display of  claim 1 , wherein the light-blocking layer composition comprises a binder resin, a reactive unsaturated compound, a photopolymerization initiator, the organic black pigment, and a solvent. 
     
     
       11. The liquid crystal display of  claim 10 , wherein the light-blocking layer composition comprises about 1 wt % to about 30 wt % of the binder resin; about 1 wt % to about 20 wt % of the reactive unsaturated compound; about 0.05 wt % to about 5 wt % of the photopolymerization initiator; about 1 wt % to about 30 wt % of the organic black pigment, and a balance amount of the solvent. 
     
     
       12. The liquid crystal display of  claim 1 , wherein the transparent layer composition comprises about 3 wt % to about 70 wt % of the binder resin; about 2 wt % to about 40 wt % of the reactive unsaturated compound; about 0.1 wt % to about 5 wt % of the photopolymerization initiator; and a balance amount of the solvent. 
     
     
       13. The liquid crystal display of  claim 1 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer. 
     
     
       14. The liquid crystal display of  claim 13 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer and has a different cross-sectional shape than the light-blocking layer. 
     
     
       15. The liquid crystal display of  claim 1 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer. 
     
     
       16. The liquid crystal display of  claim 15 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer and includes at least a portion with a height that is different from the height of at least another portion relative to the front surface of the light-blocking layer. 
     
     
       17. A liquid crystal display (LCD) comprising:
 a thin film transistor positioned on a lower substrate; 
 a plurality of color filters positioned on the thin film transistor and aligned to be spaced apart from each other; 
 an insulation layer positioned on the plurality of color filters; 
 a light-blocking layer positioned on the insulation layer; 
 a transparent layer positioned on the light-blocking layer and having a convex shape; 
 an upper substrate facing the lower substrate; and 
 a liquid crystal layer interposed between the lower substrate and the upper substrate, 
 wherein the light-blocking layer includes an organic black pigment, 
 the transparent layer includes a black pigment, 
 the transparent layer having the convex shape has a different cross-sectional shape from the light blocking layer, and 
 the light-blocking layer and transparent layer are manufactured by: 
 coating a light-blocking layer composition and drying the same, 
 coating a transparent layer composition comprising a binder resin, a reactive unsaturated compound, a photopolymerization initiator, a black pigment and a solvent on the dried light blocking layer composition and drying the same, and 
 simultaneously exposing and developing the dried light-blocking layer composition and transparent layer composition. 
 
     
     
       18. The liquid crystal display of  claim 17 , wherein the transparent layer having the convex shape covers a part of a front surface of the light-blocking layer. 
     
     
       19. The liquid crystal display of  claim 17 , wherein the transparent layer having the convex shape covers a whole of a front surface of the light-blocking layer.